import execjs
token = "\x1D\n\x14\x12\x18\f\x1E\x16UN\x00DTP\x03TR@CZY\x03E"
key = 'sec2lesson1'
if __name__ == '__main__':
    with open("des.js", "r", encoding="utf-8") as f:
        token = execjs.compile(f.read()).call("simplify_des", token, key)
    print(token)